{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "data breach", "arguments": ["compromised data", "number of victim", "purpose", "number of data", "place", "time", "tool", "victim", "attacker", "damage amount", "attack pattern"]}], "input": "( CNN ) Atlanta 's mayor on Thursday urged anyone with personal information in city information systems to check their financial records as an investigation continues into a ransomware attack on the city ."}
{"data breach": []}